Process for production of 3-alkenylcephem compound
    5.
    发明专利
    Process for production of 3-alkenylcephem compound 有权
    3-烯丙基化合物的生产方法

    公开(公告)号:JP2011063616A

    公开(公告)日:2011-03-31

    申请号:JP2010262533

    申请日:2010-11-25

    Abstract: PROBLEM TO BE SOLVED: To provide a process for producing 7-amino-3-[2-(4-methylthiazol-5-yl)vinyl]-3-cephem-4-carboxylic acid or its salt having a high Z-isomer content and a low content of phenylacetic acid or its derivative as an impurity.
    SOLUTION: Enzymatic reaction of a salt of 7-amino-3-[(E/Z)-2-(4-methylthiazol-5-yl)vinyl]-3-cephem-4-carboxylic acid is performed to obtain an aqueous solution containing phenylacetic acid or its derivative as a byproduct of the deprotection reaction, the phenylacetic acid or its derivative is extracted from the aqueous solution with an organic solvent or precipitated from the aqueous solution by crystallization, and the aqueous solution is brought into contact with activated carbon to increase the content of 7-amino-3-[2-(4-methylthiazol-5-yl)vinyl]-3-cephem-4-carboxylic acid or its salt.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 待解决的问题:提供制备7-氨基-3- [2-(4-甲基噻唑-5-基)乙烯基] -3-头孢烯-4-羧酸或其具有高Z的盐的方法 异构体含量和低含量的苯乙酸或其衍生物作为杂质。 解决方案:进行7-氨基-3 - [(E / Z)-2-(4-甲基噻唑-5-基)乙烯基] -3-头孢烯-4-羧酸的盐的酶促反应,得到 含有苯乙酸或其衍生物作为脱保护反应副产物的水溶液,苯乙酸或其衍生物用有机溶剂从水溶液中提取,或通过结晶从水溶液中沉淀出来,使水溶液接触 用活性炭增加7-氨基-3- [2-(4-甲基噻唑-5-基)乙烯基] -3-头孢烯-4-羧酸或其盐的含量。 版权所有(C)2011,JPO&INPIT

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